List of number-one singles of 2011 (Ireland)

This list of number-one hits in Ireland in 2011. It was the year of 16 number-one singles and 15 number-one albums.

• Matt Cardle - When We Collide 4 weeks ( 16 December 2010 - January 12, 2011 )

• 4 weeks ( 13 January to 9 February )

• 6 weeks ( March 3 to April 13 )

• 4 weeks ( April 21 to May 18 )

• 2 weeks ( May 19-June 1 )

• 5 weeks ( June 2 to July 6 )

• 5 weeks ( July 14 to August 17 )

• 4 weeks ( August 18 to September 14 )

• 4 weeks ( 15 September to 12 October )

• 8 weeks ( 13 October to 30 November )

• 2 weeks ( December 1 to December 14 )

• 4 weeks ( December 15, 2011 - January 11, 2012)

• Rihanna - Loud Three weeks (December 30, 2010 - January 19, 2011 )

• 9 weeks ( 27 January to 30 March, a total of 35 weeks, see 2012)

• 2 weeks ( March 31-April 13 )

• 6 weeks ( April 14 to May 25, a total of 35 weeks)

• 2 weeks ( May 26-June 8 )

• 3 weeks ( June 9 to June 29, a total of 35 weeks)

• 5 weeks ( July 7 to August 10, a total of 35 weeks)

• 2 weeks ( August 11 to August 24 )

• 5 weeks ( 8 September to 12 October, a total of 35 weeks)

• 2 weeks ( November 3 to November 16, a total of 3 weeks, see 2012)

• 5 weeks (1 December 2011 - 4 January 2012)